Function

The Socomec RF system is designed to replace Ethernet LAN network infrastructure and Modbus RS485 multi-drop wiring runs with a secure local wireless network. The RF systems has been designed to be networked from different locations throughout a facility or campus environment. The RF END-Node has an RS485 input to connect to any Modbus device that needs wireless communication, while the RF HUB-Node converts the wireless communication into an RS485 or Ethernet bus, making compatibility and integration seamless with all EMS/BMS systems.

Advantages

Easy installation

The Socomec RF system is designed to improve installation safety and reduce overall installation time:
- Wireless RS485 network saves both time and money eliminating costly wire runs.
- The RF END-Node is self-powered by the DIRIS MCM meter and can be mounted directly on top of it.
- (1) RF HUB-Node can support up to 8 Modbus devices on a network.

Easy commissioning

- Configuration with a simple and intuitive PC application (RF-View) via a direct USB connection to RF HUB-Node.
- Visual signal strength feature guarantees optimal device placement for maximum network coverage.
- (1) RF HUB-Node can support up to (8) different Modbus devices on one network.

Rugged Industrial design

- Aluminum body case.
- Extendable and multi-position antenna provides unlimited mounting options and avoids communication losses.
- Easy-access LED status lights
- RF Encryption ensures data confidentiality.

Programmable / Customizable

- Equipped with an automatic communication retry feature to ensure no data packets go missing.
- Configurable“ Prefetch” mode lets the user program the system to improve data reliability and response time to Modbus Host.
- Assign one RF END-Node to a specific Modbus address
- Using Test utility allows user to see data results while both on and off site.

Technical data

Communication characteristics

RF END-Node

RF HUB-Node

Antenna connection

RSMA

Frequency

902 - 928 MHZ

Radio Power

25 dbm

Encryption

128 Bit AES

Modulation

FSK

Link Budget

135 dB

System Range(s)

5 Miles Outdoor Line of Sight 1000 feet indoor commercial

Communications

RS485 Modbus RTU

RS485 Modbus RTU 

Ethernet Modbus TCP

Electrical Characteristics

RF END-Node

RF HUB-Node

Consumption

3 VA

Power Supply

4.8 - 28 VDC

5.0 VDC

Connection

Molex Minift Jr (2x2)

USB Type B

Environmental Characteristics

RF END-Node

RF HUB-Node

Temperature

-4... +140°F /-20 +60°C

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Resources & Documentation